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1.
A sex act:

After orgasming inside of your partner, you pull out your penis and shake it on their face causing cum droplets to rain down.

Can be used as a derogatory term for a stupid person.

John: Hold still while I give you some cum droplets!
Scott: Is this still enough?
John: Oh yeah, here comes the Maltese Rain!

*shake penis*
by The Great Maltese May 15, 2008
 
2.
A sex act:

After orgasming inside of your partner, you pull out your penis and shake it on your their face causing cum droplets to rain down.

Can be used as a derogatory term for a stupid person.
John: Hold still while I give you some cum droplets!
Scott: Is this still enough?
John: Oh yeah, here comes the Maltese Rain!
* Shake Penis *
by TheGreatMalteseSauseege May 14, 2008